delims.go

package main

import (
    "template"
    "fmt"
)

func main() {
    tmpl := template.New(nil)
    tmpl.SetDelims("{{", "}}")
    if err := tmpl.ParseFile("template.html"); err != nil {
        fmt.Print("Error\n")
    }
}

template.html

<script type="text/javascript">
/* <![CDATA[ */
   (function() {
       var s = document.createElement("script"), t =
document.getElementsByTagName("script")[0];
       s.type = "text/javascript";
       s.async = true;
       s.src = "http://api.flattr.com/js/0.6/load.js?mode=auto";
       t.parentNode.insertBefore(s, t);
   })();
/* ]]> */
</script>